And then Half Life came along and showed you could have a game without any cutscenes whatsoever, with story and expositional moments parts of the game you could

And then Half Life came along and showed you could have a game without any cutscenes whatsoever, with story and expositional moments parts of the game you could still interact within the map. Listening to the security guards in the main hall, finding that button under the desk... and pushing it.